Hi Maksim, You have to be careful when you do this. You may end up losing quorum on txns if you wipe out the disk of a server prematurely.
On your step 4, you can tell that a server is ready once clients are able to connect to it successfully. Thanks, -Flavio > On 21 Oct 2016, at 09:11, Vazhenin, Maksim <[email protected]> wrote: > > Hi, > > Is this a supported scenario for doing rolling upgrade of zookeeper (v3.4.5) > to later version (say v3.4.9): > > 1. Shutdown server A (v3.4.5) > 2. Wipe disk with zookeeper data on server A > 3. Start server A with new zk version (v3.4.9) > 4. Wait till reconstruction complete on server A (what is the indicator for > completion?) > 5. Go to server B and repeat 1-4. > > Thanks, > Maksim
